The best way to learn mathematics is to do mathematics.

"A great book is one that leaves you changed, with a new perspective on life and a deeper understanding of the human condition."

这是个有趣的星球，值得你倾注全部注意力。

Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.

A malignant book would hurt nobody but the fool who wrote it.

计算的目的是洞察，而不是数字。

The future belongs to those who are willing to adapt and learn.